Cyrus is a 2010 romantic comedy-drama film written and directed by Jay and Mark Duplass and distributed by Fox Searchlight Pictures. Its story follows John, a recent divorcée who meets and instantly falls for a woman named Molly. The two start a relationship but John soon comes to find out that Molly's overprotective son, Cyrus, does not want to share his mother with anyone else. It stars John C. Reilly, Jonah Hill, Marisa Tomei, and Catherine Keener.

Lawrence Jay Duplass Jr. is an American filmmaker, actor and author widely known for his films The Puffy Chair (2005), Cyrus (2010), and Jeff, Who Lives at Home (2011), made in collaboration with his younger brother, Mark Duplass.